Burglar-alarm.



PATENTED JUNE 11, 1907.

FIG. 2.

36/, 'KA ,HARTMA'NN. v Y g M PATENTED JUNE 11, 1907.

K. E. HARTMANN. BURGLAR ALARM.

APPLIOATION FILED mm. 12, 1906.

2 SHEETS-531E111 2.

F'KELS.

line 4 4 of Fig. 2; Fig. 0

UNITED STATES PATENT OFFICE.

BU RGLAR-ALARM Specification of Letters Patent.

Patented June 1 1,1907.

Application filed February 12, 1906. Serial No. 300,837.

To all whom it may concern:

Be it known that I, KATE E. IIARTMANN, a citizen of the United States, residing at Collinsville, in the county of Madison and State of Illinois, have invented new and useful Improvements in Burglar-Alarms and Safety Attachments for Safes, of which the following is a specification.

My invention relates to a burglar alarm and safety attachment for safes, and the obj ect of my invention is to arrange a firearm upon the interior of a safe or vault door, and to provide mechanism whereby said firearm will be discharge d when the safe or vault door is opened by an unauthorized person, and which discharge mechanisn'i may be thrown out of commission when the proprietor or authorized p rson desires to open the door.

To the above purposes, my invention consists in certain novel features of construction and arrangement of parts, which will be hereinafter more fully set forth, pointed out in the claims, and illustrated in the accomp anyin g drawings, in which 1 Figure 1 is a horizontal section through a portion of a safe orvault, and showing my improved attachment arranged'on the inside of the door thereof; Fig. 2 is a vertical section taken on the line 2 2 of Fig. 1, and looking against the inside of the door; Fig. 3 is an enlarge d horizontal section taken on the is a perspective view of a special form of screw used in connection with my improved attachment; Fig. 6 is a perspective view of a key made use of in releasing the special screw; Fig. 7 is a perspectivview of a removable disk which is positioned over the head of each special screw; Fig. 8 is an enlarged elevation of the iire arm trigger engaging devices.

Referring by numerals to the accompanying drawings :-1 designates the body of the safe or vault, and 2 the door thereof; and to the inside of said. door is fixed in any suitable manner a block 3, beneath which is support ed in any suitable manner a firearm 4, preferably of the double acting repeating type which is horizontally disposed, and with the muzzle pointing toward the edge of the door which opens.

Fixed in any suitable manner a short distance below the block 3 is a screw block 5, and arranged beneath the blocks 3 and 5 is a horizontally disposed supporting bar 6, which is held in position by screw bolts 8, passing through the door 2, the heads 9 of which bolts are recessed, and adapted to occupy suitably formed recesses 10 in the outer face of said door.

The outer surfaces of the heads 9 lie below the outer surface of the door when the screws are seated in the bar 6, and occupying the recesses 10 immediately over said heads so as to hide them from view are removable disks 11. The recessed heads 9 are adapted to be engaged by a key 12, the head 13 of which is constructed to fit in the recessed head 9 when the screw is engaged for manip ulation.

Arranged for horizontal movement on top of the supporting bar 6 is a rod 14, the right hand end of which is provided with a series of upwardly extending spring pressed hinged lingers 15 which normally lie immediately to the right of the trigger of the firearm 1-, and the upper ends of said fingers being adapted to engage with said trigger when the rod 14 is pulled toward the left.

Pivotally connected to the left hand end of the rod 14 is a vertically disposed lever 15, which is fulcrumed at its center upon a pin 16, and the lower end of said lever is pivotally connected to a horizontally disposed rod 17, operating through a block 18 fitted. to the inside of the door 2 at a suitable distance below the block 5. Located. on that portion of the rod 17 which projects beyond the right hand end of the block 18 is a collar 19, and interposed between said collar and the ends of the block 18 is an expansive coil spring 20. be extreme right hand end of the rod 17 is curved for wardly, and is adapted to operate in a horizontallyarranged inclinedv groove 21 which is formed in the edge of the safe or vault against which the door 2 closes.

hen a safe or vault door equipped. with my improved attachment is opened by an unauthorized person, the outward swing of said door permits the right hand end of the rod 17 to travel through the inclined groove 21, following the expansive action of the spring 20, and, as a result, the lever 15" is shifted, and the rod 14 will be correspondingly moved toward the left hand, and the fingers 15 will successively engage the trig ger of the firearm and the same will be dis charged, andv thus give an alarm.

hen the safe is opened by an authorized person, or person having knowledge of the location of the alarm attachment, the disks 11 covering the heads of the screws 8 are removed, after which the end of the key 12 is engaged in said heads 9, and the screws withdrawn from the bar 6. This action al lows the bar 6 to drop downwardly onto the block 5, and following this movement, the

right hand end of the rod 14,.carrying thefingers 15, will drop downwardly into a position where they will not enga e with the trigger of the firearm when the safe is opened.

When the safe door is to be closed and the alarm set, the bar 6 is elevated to its normal position and locked in such. position by means of the screw bolts 8, with the rod 1 1 at its left hand limit of movement with the fingers 15 to the rear of the trigger of the firearm, which action is due to the expansion of the coil spring 20. The proprietor, or authorized person, now closes the door carefully,

and in so doing, the ri ht hand end of the rod 17 will travel throug the inclined slot 21, which acts as a cam to move the rod 17 to the left, thereby compressing the spring 20, at the same time correspondingly moving the rod 14 to the right, during which movement the fingers 15 will engage against the rear side of the trigger of the firearm and swing down- 2 5 wardly to pass the same, (as shown by dotted lines in Fig. 8.)

My improved attachment maybe readily attached to the interior of the door of any safe or vault, is entirely automatic in opera- 0 tion, and can be easily and quickly set by the proprietor or authorized person when the safe or vault door is closed.

I claim The combination with a safe door, of a fire- 3 5 arm arranged on the interior thereof, a rod arranged for horizontal movement beneath the firearm, a series of fingers carried by said rod, a bar detachably held on the interior of the safe door for supporting the rod, and 4c spring actuated means connected to the end of the rod for shiftin the same horizontally when the door is opened.

' KATE E. HARTMANN.

Witnesses: l

ADAM SoHRoEPPEL, SOPHIA A. HARTMAN. 

